Hi guys, me again, i’ve tapped into the green/brown reversing light feed from the loom at the bottom of the tailgate, ive not got An iota of power, in reverse, engine on. I can’t work out why no power, good connection, bare wire, cable tap
 
Do reverse lights work?
Have you measured voltage from green brown to car metalwork?
Worth testing meter or test lamp on a battery.

My circuits show green brown for reverse lamps too.
 
Now to the front, the nearest Earth seems to me under the A panel, drivers side, I don’t want to bust the clips, is there a trick to pull it off, Thanks
 
The A panel is fairly robust, don't quote me !!
Remove door seal and try to lever near clip. A long plastic trim tool is useful.

Glad you sorted the power, always worth checking to the vehicle metalwork as this highlights a bad ground connection, which is what you had.
 

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